That said, search engines may remember a domain if it was banned, etc. Just because it changed owners hands, doesn't mean those bans/penalties will be lifted.
If you have a domain that is currently being penalized by search engines, the best you can do is make sure you new content is legit, and then write them explaning the situation and requesting a re-review. Both Yahoo and Google have such facilities to send in requests like this.
Hope this helps.